<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>script error</title>
</head>
<body>
    <div>window.onerror捕获到的错误</div>

    <script>
        window.onerror = function (message, url, line, column, error) {
                console.log('捕获到错误:',message, "==line:", line,"==column:", column, "==error:",error);
        }

    </script>
    <script src="http://127.0.0.1:8080/test.js"/>
</body>
</html>